Is there a difference between the temperature at noon and the temperature in the morning?

Patient's question:

Do the temperatures in the afternoon and morning differ? What about the evening temperature?
First follow-up question: My morning temperature is 36.6, and the afternoon temperature is 36.3. Is this normal?
Second follow-up question: If it's during ovulation, with a morning temperature of 36.6 and an afternoon temperature of 36.3, is this normal?

Doctor's answer:

Hello, there isn't much difference. It's just that the body temperature at noon is 1 degree higher than in the morning.